CVE-2026-102577
A flaw was found in Moodle. Incorrect handling of IPv4-mapped IPv6 addresses within the URL downloader's host-blocking logic allows an authenticated remote user to bypass blocked-host restrictions. By supplying a crafted URL, an attacker can induce the server to make requests to restricted destinations, leading to Server-Side Request Forgery (SSRF).
- Published Sep 30, 2026
- CVSS 4.3 medium
- 0.2% chance of exploitation in the next 30 days (EPSS)
- A fix is available